M
Mark Jones
- Jan 1, 1970
- 0
Hi. I'm looking at the LM3622 datasheet
(http://www.national.com/ds/LM/LM3622.pdf). It's a simple Li-ion
linear charger. Comes in 4v/8v Li-ion versions. In Li-ion topology, a
lot of fuss is made about the cell's final voltage accuracy and how
overshooting this will destroy the cell. But what would happen if two
cells in series were chargeed with one unequally depleted? Wouldn't
the other cell shoot way over its rated voltage, destroying it? It
makes no sense that nowhere has this been mentioned. Is this a real
concern? Should the two Li-ion cells in series be equalized when
charging or charged separately?
TIA.
(http://www.national.com/ds/LM/LM3622.pdf). It's a simple Li-ion
linear charger. Comes in 4v/8v Li-ion versions. In Li-ion topology, a
lot of fuss is made about the cell's final voltage accuracy and how
overshooting this will destroy the cell. But what would happen if two
cells in series were chargeed with one unequally depleted? Wouldn't
the other cell shoot way over its rated voltage, destroying it? It
makes no sense that nowhere has this been mentioned. Is this a real
concern? Should the two Li-ion cells in series be equalized when
charging or charged separately?
TIA.